#####################################################################
# s01f21.py
#
# (c) Copyright 2021, Benjamin Parzella. All rights reserved.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#####################################################################
"""Class for stream 01 function 21."""
from secsgem.secs.functions.base import SecsStreamFunction
from secsgem.secs.data_items import VID
[docs]class SecsS01F21(SecsStreamFunction):
"""
Data variable namelist request.
**Data Items**
- :class:`VID <secsgem.secs.data_items.VID>`
**Structure**::
>>> import secsgem.secs
>>> secsgem.secs.functions.SecsS01F21
[
VID: U1/U2/U4/U8/I1/I2/I4/I8/A
...
]
**Example**::
>>> import secsgem.secs
>>> secsgem.secs.functions.SecsS01F21([1, "VARIABLEID"])
S1F21 W
<L [2]
<U1 1 >
<A "VARIABLEID">
> .
:param value: parameters for this function (see example)
:type value: list
"""
_stream = 1
_function = 21
_data_format = [VID]
_to_host = False
_to_equipment = True
_has_reply = True
_is_reply_required = True
_is_multi_block = False